Improvement in loom-shuttles



n. fifcfi AMBERLAIN.

LOOM-SHUTTLE. lie/188,281. Patented'March13 187'T.

14627465565: I. I Ve 2207:

m MW. 7 @Mm DEXTER H. CHAMBERLAIN, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO HIMSELF AND WILLIAM H. IRELAND, OF SAME PLACE.

IMPROVEMENT IN LOOlVl-SHUTTLES.

Specification forming part of Letters Patent No. 188,281, dated March 13, 1877 application filed I January 8, 1877.

To all whom rt may concern Be it known that I, DEXTER H. CHAMBER- LAIN, of Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Loom-Shuttles; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable. others skilled in the art to which it appertains to make and use the same, reference being bad to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

My invention relates to improvements in loom-shuttles; and consists, in combination with the ordinary hinged head in a loomshuttle, of a tubular metallic spindle, made in one piece with or secured to the head afore said, and a movable tapering metallic tube or sleeve, located outside of the tubular metal lic spindle. To the outer and closed end of the said tapering metallic sleeve, and on the inside of the same, is secured a slender rod or metallic wire, that passes through the hollow metallic spindle. The rear end of said rod or wire is provided with a hub or head, between which and a support in the hollow metallic spindle is located a compressible coiled spring. The cop is placed upon the outside 'of the hollow, tapering, and movable metallic tube, by which arrangement the said metallic tube, and the cop upon it, is at liberty to move forward when that end of the shuttle which is not attached to the spindle is struck by the picker; and by this arrangement the breaking of the cop is effectually prevented, thus saving a great deal of unnecessary waste.

There are several advantages in my invention over the ordinary devices for preventing the breaking of cops, one of which is, that the only movable part of my invention is'the very light tapering tube on which the cop is secured. Since this tube is so light, even a very slight blow on the shuttle end will set the said light and hollow tapering tube in motion, which is a great advantage over the ordinary ones, in which, generally, the whole of the heavy spindle has tobe set in motion to ac complish the desired result, and in such case,

when the blow on the shuttle is not sufficient to overcome the inertia of the whole spindle mass, the cop will break before such inertia can be overcome. This is obviated in my invention, Where the spindle proper is stationary, and provided with a very light and hollow case, on which the cop is secured, and which hollow tube, and its cop are movable and yielding as soon as a blow, whether slight or powerful, is given to the shuttle.

Another advantage of my invention 'is,-that when the movable tapering cop-tube is on its seat on the hollow spindle it forms, as it were, a solid piece with the same; but as soon as the cop-tube is released, ever so little, it is free to move somewhat to either side of the hollow spindle, by which the outer end of the coptube will automatically direct itself to the very spot on the shuttle end on which the blow is given; and as the shuttle-point is not always in a line with the center of the spindle, it will be seen that by this arrangement the co p-tube will always move centrally toward the point of the shuttle, even it the latter should be. out of true with the center of the 01 represents the hollow tapering metallic spindle, secured to the head b in its rear end. 8 represents the movable hollow tapering coptube surrounding the metallic spindle d, and having in its forward end secured the end of a light rod or wire, f, that passes through the central hole d in the spindle d, and is provided in its rear end with a small head or hub, or nut, 9, between which and the end of the central chamber d" is located a compressible spring, h, as shown. i represents the cop.

It will thus be seen that the cop and its cop-tube c, with its central wire or rod f, are

the only parts that are free to move forward when a blow is given to the shuttle, the rest being stationary; and as soon as the blow is over, the cop and its tube and rod are automatically returned to their proper relative po sitions by means of the spring h acting on the enlargement g on the end of the rod or \viref.

Having thus fully described the nature, construction, and operation of my invention, I wish to secure by Letters Patent, and claim-- l. The combination, with the hollow spindle d d d", provided with a head, I), of the movable tapering cop-tube 6, provided with DEXTER H. CHAMBERLAIN.

Witnesses ALBAN ANDREN, HENRY CHADBUURN. 

